Just completed this one
It started out life as a Uberti "London" model in their "Charcoal Blue" finish.
Not wanting to disturb that finish (which was starting to age nicely), I made a dovetail filler to replace the rammer catch and installed a Kirst ejector. The cylinder is the R&D Richards style.
I TIG welded the hammer face to eliminate the "notch" (this notch raises burrs on both sides of the firing pin causing it to stick) then rehardened with Kasenite.
I also stripped and refinished the grips in a lighter color because they had such nice striping that I didn't want to hide. Followed by a light coat of tung oil.
Fixed all of the buggered screw heads and reblued them, then cleaned up and lightened the action.
I think it turned out pretty nice